| (19) |
 |
|
(11) |
EP 2 610 448 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
06.07.2016 Bulletin 2016/27 |
| (43) |
Date of publication A2: |
|
03.07.2013 Bulletin 2013/27 |
| (22) |
Date of filing: 19.12.2012 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
|
Designated Extension States: |
|
BA ME |
| (30) |
Priority: |
26.12.2011 JP 2011283854
|
| (71) |
Applicant: NGK Insulators, Ltd. |
|
Nagoya-city, Aichi 467-8530 (JP) |
|
| (72) |
Inventor: |
|
- Miyairi, Yukio
Nagoya city, Aichi 467-8530 (JP)
|
| (74) |
Representative: Naylor, Matthew John et al |
|
Mewburn Ellis LLP
City Tower
40 Basinghall Street
London EC2V 5DE
City Tower
40 Basinghall Street
London EC2V 5DE (GB) |
|
| |
|
| (54) |
Honeycomb structure and process for manufacturing the same |
(57) There is provided a honeycomb structure including: a honeycomb substrate having porous
partition walls separating and forming a plurality of cells functioning as fluid passages
and plugging portions disposed in openings of predetermined cells on one end face
and openings of the remaining cells on the other end face, wherein the partition walls
contain ceramic as a main component, the number of cells having at least one pore
passing from one surface to the other surface of a partition wall and having a minimum
pore size of 100 µm or more is 100 or less, and the partition walls have a permeability
of 0.5×10
-12m
2 or more and 10×10
-12m
2 or less.